Finding Max and Min using cin

[Nhd]

Write a program that reads daily temperatures, as floats. Read in a loop until an EOF. After the input has been read, print the maximum and minimum values. You can assume that there is at least one input data value.
Sample input values

10.0 11.3 4.5 -2.0 3.6 -3.3 0.0


The output should look something like the following. Formatting may vary.

Maximum = 11.3
Minimum = -3.3

Hi... Can anyone show me how to write this program?

[Banfa]

You can read the file using the functions

fopen
fgets
fclose

I suggest you don't use fscanf

then you can use

strtof

to convert the text into binary values, store these values in an array or list.

As you read the values check them to see if you have a maximum or minimum and store the maximum and minimum for later use.

OPEN FILE
 
do
{
   IF FIRST TIME OR INPUT BUFFER EMPTY
      READ FILE INTO INPUT BUFFER
   ENDIF
 
   GET BINARY VALUE FROM INPUT BUFFER
 
   IF GOT BINARY VALUE
      IF FIRST VALUE
         MIN = MAX = VALUE
      ELSE
         IF VALUE > MAX
            MAX = VALUE
         ENDIF
 
         IF VALUE < MIN
            MIN = VALUE
         ENDIF
      ENDIF
 
      STORE VALUE
} while(INPUT BUFFER NOT EMPTY AND NOT EOF)
 
CLOSE FILE
 

[/code]

[Nhd]

Hi, this program is not really working... when i run it, there's an error which states "cin", "cout" and "endl" are undeclared (first use this function).. But why should i declare cin, cout and endl? There's supposed to be no need for any declaration for these rite...?

#include<iostream>

void min_max (int one, int two, int three, int& min, int& max);

main()
{
int a,b,c,min,max;
cin>>a>>b>>c;
min_max(a,b,c,min,max);
cout<<"Minimum "<<min<<endl;
cout<<"Maximum "<<max<<endl;
}


void min_max (int one, int two, int three, int& min, int& max)
{
min = one;
max = one;
if (two > max) max = two;
if (two < min) min = two;
if (three > max) max = three;
if (three < min) min = three;
}

[D_C]

Add #include<stdlib.h> and the code will run.

[Nhd]

Hi.. i tried but the error is still there.... But i think im on the wrong track after thinking back...

My input sample is like this:

File 1 File 2 Lines Matched
File1-0(71%) File2-0(63%) 177
File1-1(59%) File2-1(63%) 167
File1-2(49%) File2-2(54%) 101
File1-3(42%) File2-3(51%) 130
File1-4(53%) File2-4(47%) 92
File1-5(58%) File2-5(57%) 109
File1-6(43%) File2-6(48%) 183
File1-7(48%) File2-7(50%) 80
File1-8(38%) File2-8(45%) 81
File1-9(40%) File2-9(41%) 71
File1-10(38%) File2-10(32%) 64
File1-11(17%) File2-11(29%) 61
File1-12(28%) File2-12(26%) 65
File1-13(22%) File2-13(18%) 50
File1-14(13%) File2-14(11%) 20
File1-15(16%) File2-15(14%) 28
File1-16(17%) File2-16(16%) 34
File1-17(14%) File2-17(13%) 23
File1-18(14%) File2-18(10%) 41

Im trying to get the max, min, average and standard deviation for the percentage of file 1 which are in this case those in the brackets (..%).

So im able to get an output like this:

number of records: 19
maxp1 = 71 minp1 = 13 avgp1 = 35 stdevp1 = 19

That is why in my another post, im trying my best to count the number of lines being read.... can anyone help me... i really need help... thks so much....